Table 4.
Characteristics of studies included in the meta-analyses.
| References | First author | Year | Country | Sample size | Diagnostic SRBD method | Proportion of SRBD (%) | AHRQ/NOS score |
|---|---|---|---|---|---|---|---|
| (14) | Vetrugno | 2004 | Italy | 19 | PSG | 37 | 7 |
| (13) | Deguchi | 2010 | Japan | 15 | PSG | 86.7 | 6 |
| (5) | Wassilios | 2014 | France | 23 | PSG | 34.8 | 6 |
| (12) | Alfonsi | 2016 | Italy | 17 | PSG | 29.4 | 7 |
| (10) | Ohshima | 2017 | Japan | 24 | PSG | 100 | 6 |
| (11) | Flabeau | 2017 | France | 28 | PSG | 39.3 | 7 |
| (8) | Saleheddine | 2018 | France | 45 | PSG | 56 | 7* |
| (9) | Cao | 2018 | China | 40 | PSG | 65 | 7* |
| (7) | Sugiyama | 2022 | Japan | 34 | PSG | 85 | 6* |
| (6) | Sun | 2024 | China | 50 | PSG | 44 | 7 |
| 295 | PSG | 60.4 |
AHRQ, The Agency of Healthcare Research and Quality guideline; PSG, Polysomnography; SRBD, Sleep-related breathing disorder; MSA, Multiple system atrophy; NOS, Newcastle-Ottawa Scale.
Details of the Literature Quality Assessment scoring are shown in Supplementary Tables 1, 2. *Evaluating cross-sectional studies quality using NOS.